Package for liquid materials.



N. G. PHILLIPS.

PACKAGE IOR LIQUID MATERIALS. APPLICATION FILED JAN.17, 1908.

926,355, Patented June 29", 1909. 5 31 ,9 2233 3 a 0246+ gw W W iii if UNITED STATES PATENT OFFICE.

NATHAN CARLETON PHILLIPS, OF GLOUCESTER, MASSACHUSETTS, ASSIGNOR TO RUSSIA CEMENT COMPANY, OF GLOUCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

Specification'of Letters Patent.

Patented June 29, 1909.

Application filed January 17, 1908. Serial No. 411,260.

To all whom it may concern:

Be it known that I, NATHAN CARLETON Pmnurs, of Gloucester, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Packages for Liquid Materials, of which the following is a specification.-

This invention relates to packages for liquid glue and similar materials, the package being composed of a tube of ductile metal, one end of which is provided with a suitable head having a contracted orifice for delivering the material when the tube is compressed, while the other end is left open until the tube has been charged or filled, and is then closed by pressing together the sides of the open end, and folding said sides to form flattened interlocked convolutions extending across one end of the package.

Heretofore the convolutions of the folded end have been held in place to ,maintain the closure, wholly by the stiffness of the metal, no means having been employed for positively uniting the convolutions, and preventing their separation. It has been found in some cases that the expansion of the charge contained in the packa e, has caused portions of the charge to displace or separate the convolutions, particularly at the end ortions of the same, the result being the eakage of the material between the interlocked convolutions, and its appearance on the external surface of the package.

This invention has for its object to obviate this difficulty, and it consists in a package of the character above described, having the end portions of the convolutions of the folded end of the tube, united to prevent separation of said end portions, and the resulting leakage of the charge, the preferred union between the end portions of the convolutions being caps of solder, applied in such manner as to externally coat the exposed crevices at the ends of the convolutions, and bind the same together. The solder employed is preferably an alloy, having a low melting point, preferably not exceedmg 212 degrees Fahrenheit, so that contact of the melted solder with the portions of the tube to which it is applied, will not melt.

said portions, and will not transmit sufiicient heat to the interior of the package to volatilize the portions of the charge at the end where the closure is formed.

Of the accompanying drawings, forming a part of this specificzitiom-Figure 1 represents a perspective view of a ductile metal tube before its receiving or charging end has been closed. Figs. 2, 3 and 4 represent perspective views showing the successive steps employed in closing the receiving end of the tube. Figs. 5 and 6 represent side views on an enlarged scale showing the closed end of the tube before the application of the bind ing caps of solder. Figs. 7 and 8 represent views similar to 5 and 6 showing the solder caps in place. Fig. 9 represents a section on line 99 of Fig. 7. Fig. 10 represents a section on line 1010 of Fig. 7, the scale of Figs. 9 and 10 being further enlarged.

The same numerals of reference indicate the same parts .inall the figures.

In the drawings 12 represents a tube of ductile sheet metal, such as is commonly employed in making tubes to contain liquid and semi-liquid materials, such as liquid glue, the tube having a suitably formed head 13 at one end containing a discharge orifice through which the material is adapted to be forced by the compression of the body of After the char e has been inserted, the open end is flattene as shown in Fi 2, its sides being pressed together, and olded crosswise, preferably along two lines, as indicated by Figs. 3 and 4, to form flattened interlocked convolutions 14, the length of which is greater than the diameter of the body of the tube, so that they project from opposite sides of the tube, as shown in Figs. 5 and 7. After the flattened end of the tube has been thus folded, a recess 15 exists between one side of the tube and the adjacent convolution of the folded end, as shown in Fig. 9, this recess being filled by the charge which the tube contains. It sometimes hap ens, especially when the charge is compose of'liquid glue, that the expansion of the charge by changes in temperature, causes the charge to find its way along the crevice between the adjacent sides of the convolutions, and eventually escape at one or both ends of the convolutions. To prevent this leakage of the material is the obj ectof my invention, which is carried out by uniting the end portions of the convolutions in such manner as to prevent their separation, and the release of the contents of the tube, which may find its way into the crevice between the folded ends, from the recess 15. This union bet-ween the end portions of the convolutions is prefer-i ably effected by applying caps 16 of solder to the end portions of the convolutions, said caps covering pontions of the outer sides of the external convolutions, and extending across the ends of the convolutions, as shown in Figs. 7, 8 and 10. The said soldei caps may be conveniently applied by dipping the projecting end portions of the convolutions into a body of melted solder, a sutlicient quantity of solder being thus deposited upon the external surfaces of the immersed portions to form the caps 16.

The ductile metal or alloy of which the an alloy of this character, I not only prevent injury to the material of the tube which comes in contact with the alloy, but also prevent a transmission of suflicient heat from the solder through the walls of the tube to volatilize the adjacent parts of the charge of the tube.

I claim:

A package composed of a tube of ductile metal provided with a suitable head at one end and flattened at the opposite end, the sides of the flattened portion being pressed together, and folded to form flattened interlocked convolutions, the ends and portions of the sides of which are covered by solder caps which unite said end portions, and prevent separation thereof, the portions between said caps being left uncovered the solder comprising said caps being adapted to melt at a relatively low temperature, so.

that its application does not injuriously affect either the package or the contents thereof.

In testimony whereof I have aflixed my signature, in presence of two witnesses.

I NATHAN CARLETON PHILLIPS. Witnesses A. C. Bnooxs,

Jos. F. MAGPHEE. 

